During World War II, America _______ (to bomb) Nagasaki and Hiroshima.
bombed
Almost everyone ________ (to leave) for home by the time we arrived.
had left
Jenny knew what to expect because it wasn't the first time she ................... (to give) blood.
had given
By the time I got to the dentist, the pain in my tooth ________ (to stop).
had stopped
